BIOLOGY 1407 - EXAM 3 QUESTIONS
AND ANSWERS
Which of the following is a difference between plants and fungi?
a. Plants have diploid and haploid phases, and fungi have only haploid stages.
b. Plants produce spores.
c. Fungi are heterotrophic, and plants are autotrophic.
d. Fungi are strictly asexual, and plants undergo sexual reproduction.
e. Fungi have cell walls. - Correct Answers -C. Fungi are heterotrophic, and plants are
autotrophic
Fungi obtain nutrients through _____. - Correct Answers -Absorption
The body of most fungi consists of threadlike _____, which form a network called a
_____. - Correct Answers -hyphae ... mycellium
The diploid phase of the life cycle is shortest in which of the following?
a. angiosperm
b. gymnosperm
c. fungus
d. moss
e. fern - Correct Answers -C. fungus
What sexual processes in fungi generate genetic variation? - Correct Answers -
karyogamy and meiosis
An important example of interaction between fungi and certain other organisms is
mycorrhizae, in which the fungal partners _____. - Correct Answers -helps plants take
up nutrients and water
Almost all of the members of this phylum form arbuscular mycorrhizae in a mutualistic
partnership with plants. - Correct Answers -Glomeromycota
Fungi of the phylum Ascomycota are recognized on the basis of their production of
_____ during sexual reproduction. - Correct Answers -saclike structures
, Fungi form mutualistic relationships with plants and animals. Which of the following is
an example of such a relationship?
a. Endophytes in leaves produce toxins that deter herbivores.
b. Fungi can help increase drought tolerance in plants
c. Fungi help break down plant material in the guts of grazing mammals.
d. Fungi help break down wood in the guts of termites.
e. All of the above. - Correct Answers -e. all of the above
From the human perspective, which of the following kinds of fungi would be considered
the least useful or beneficial?
a. rusts
b. yeasts
c. decomposers
d. mycorrhizal fungi
e. truffles - Correct Answers -a. rusts
Meiosis will produce microspores in the _____. - Correct Answers -anther
In angiosperms, each pollen grain produces two sperm. What do these sperm do? -
Correct Answers -One fertilizes an egg, and the other combines with two polar nuclei,
which develop into stored food cells (endosperm).
The germination of seeds _____. - Correct Answers -depends on imbibition
Which association below is correct?
a. anther ... egg production
b. unisexual flowers ... dioecious
c. monoecious ... bisexual flowers
d. dioecious ... separate female and male plants
e. bisexual flowers ... dioecious - Correct Answers -d. dioecious ... separate female and
male plants
Which of the following is an example of sexual reproduction?
a. fragmentation
b.apomixis
c. stump sprouts
d. cuttings
e. fusion of sperm and egg nuclei in an ovule - Correct Answers -e. fusion of sperm and
egg nuclei in an ovule
Which of the following is an advantage of asexual reproduction in plants?
AND ANSWERS
Which of the following is a difference between plants and fungi?
a. Plants have diploid and haploid phases, and fungi have only haploid stages.
b. Plants produce spores.
c. Fungi are heterotrophic, and plants are autotrophic.
d. Fungi are strictly asexual, and plants undergo sexual reproduction.
e. Fungi have cell walls. - Correct Answers -C. Fungi are heterotrophic, and plants are
autotrophic
Fungi obtain nutrients through _____. - Correct Answers -Absorption
The body of most fungi consists of threadlike _____, which form a network called a
_____. - Correct Answers -hyphae ... mycellium
The diploid phase of the life cycle is shortest in which of the following?
a. angiosperm
b. gymnosperm
c. fungus
d. moss
e. fern - Correct Answers -C. fungus
What sexual processes in fungi generate genetic variation? - Correct Answers -
karyogamy and meiosis
An important example of interaction between fungi and certain other organisms is
mycorrhizae, in which the fungal partners _____. - Correct Answers -helps plants take
up nutrients and water
Almost all of the members of this phylum form arbuscular mycorrhizae in a mutualistic
partnership with plants. - Correct Answers -Glomeromycota
Fungi of the phylum Ascomycota are recognized on the basis of their production of
_____ during sexual reproduction. - Correct Answers -saclike structures
, Fungi form mutualistic relationships with plants and animals. Which of the following is
an example of such a relationship?
a. Endophytes in leaves produce toxins that deter herbivores.
b. Fungi can help increase drought tolerance in plants
c. Fungi help break down plant material in the guts of grazing mammals.
d. Fungi help break down wood in the guts of termites.
e. All of the above. - Correct Answers -e. all of the above
From the human perspective, which of the following kinds of fungi would be considered
the least useful or beneficial?
a. rusts
b. yeasts
c. decomposers
d. mycorrhizal fungi
e. truffles - Correct Answers -a. rusts
Meiosis will produce microspores in the _____. - Correct Answers -anther
In angiosperms, each pollen grain produces two sperm. What do these sperm do? -
Correct Answers -One fertilizes an egg, and the other combines with two polar nuclei,
which develop into stored food cells (endosperm).
The germination of seeds _____. - Correct Answers -depends on imbibition
Which association below is correct?
a. anther ... egg production
b. unisexual flowers ... dioecious
c. monoecious ... bisexual flowers
d. dioecious ... separate female and male plants
e. bisexual flowers ... dioecious - Correct Answers -d. dioecious ... separate female and
male plants
Which of the following is an example of sexual reproduction?
a. fragmentation
b.apomixis
c. stump sprouts
d. cuttings
e. fusion of sperm and egg nuclei in an ovule - Correct Answers -e. fusion of sperm and
egg nuclei in an ovule
Which of the following is an advantage of asexual reproduction in plants?
